ZA852504B - Investigation of condition of biological particles - Google Patents

Investigation of condition of biological particles

Info

Publication number
ZA852504B
ZA852504B ZA852504A ZA852504A ZA852504B ZA 852504 B ZA852504 B ZA 852504B ZA 852504 A ZA852504 A ZA 852504A ZA 852504 A ZA852504 A ZA 852504A ZA 852504 B ZA852504 B ZA 852504B
Authority
ZA
South Africa
Prior art keywords
condition
voltage
biological particles
investigation
induced
Prior art date
Application number
ZA852504A
Original Assignee
Health Lab Service Board
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Health Lab Service Board filed Critical Health Lab Service Board
Publication of ZA852504B publication Critical patent/ZA852504B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/023—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil
    • G01N27/025—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil a current being generated within the material by induction
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/46—Means for regulation, monitoring, measurement or control, e.g. flow regulation of cellular or enzymatic activity or functionality, e.g. cell viability
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0266—Investigating particle size or size distribution with electrical classification

Abstract

A method of investigating the condition of biological particles, in particular the fraction of viable cells in a bacteria population involves applying a voltage and monitoring the voltage induced by magnetic induction in a detector coil. The applied voltage is of a variable frequency alternating voltage and is preferably induced in the medium through a drive coil.
ZA852504A 1984-04-03 1985-04-03 Investigation of condition of biological particles ZA852504B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848408529A GB8408529D0 (en) 1984-04-03 1984-04-03 Concentration of biological particles

Publications (1)

Publication Number Publication Date
ZA852504B true ZA852504B (en) 1985-11-27

Family

ID=10559081

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA852504A ZA852504B (en) 1984-04-03 1985-04-03 Investigation of condition of biological particles

Country Status (14)

Country Link
US (2) US4810963A (en)
EP (1) EP0176544B1 (en)
JP (1) JPS61501728A (en)
AT (1) ATE46219T1 (en)
AU (1) AU4213585A (en)
BR (1) BR8506431A (en)
CA (1) CA1239442A (en)
DE (1) DE3572864D1 (en)
DK (1) DK559785A (en)
GB (1) GB8408529D0 (en)
HU (1) HU200842B (en)
NO (1) NO164505C (en)
WO (1) WO1985004481A1 (en)
ZA (1) ZA852504B (en)

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Also Published As

Publication number Publication date
ATE46219T1 (en) 1989-09-15
EP0176544A1 (en) 1986-04-09
CA1239442A (en) 1988-07-19
US4810963A (en) 1989-03-07
AU4213585A (en) 1985-11-01
DK559785D0 (en) 1985-12-03
US4876504A (en) 1989-10-24
JPH0523624B2 (en) 1993-04-05
BR8506431A (en) 1986-04-15
GB8408529D0 (en) 1984-05-16
EP0176544B1 (en) 1989-09-06
NO854844L (en) 1985-12-02
WO1985004481A1 (en) 1985-10-10
JPS61501728A (en) 1986-08-14
NO164505C (en) 1990-10-17
DK559785A (en) 1985-12-03
HUT39015A (en) 1986-07-28
DE3572864D1 (en) 1989-10-12
HU200842B (en) 1990-08-28
NO164505B (en) 1990-07-02

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